The current official Portal Sandbox controls are T for Portal Gun, E for Regenerate, F for Blender Dimension, R for Dimensions, X for Mech Blaster, and V for Robo Arms. The developer also gives one crucial order condition: press F before entering a portal. This index keeps that current snapshot separate from older pages that still list Knife or Laser Pistol.
75108253383447. Exact effects, cooldowns, mobile buttons, controller bindings, and portal rules still need current in-game observation.Current control Dex
T · Travel
Portal Gun
Official fact: T is assigned to Portal Gun.
Best first test: select it in a quiet area and follow the visible placement feedback.
Needs testing: valid surfaces, range, portal count, destination rules, and touch/controller input.
Open Portal Gun guideE · Recovery
Regenerate
Official fact: E is assigned to Regenerate.
Best first test: use it only when the current state makes a result visible.
Needs testing: amount, cooldown, restrictions, death interaction, and device layout.
Open Regenerate guideF · Portal choice
Blender Dimension
Official fact: press F before entering a portal.
Best first test: stop outside, press F, observe feedback, then cross.
Needs testing: destination, effect, duration, cooldown, and failure message.
Open Blender guideR · Destination
Dimensions
Official fact: R is assigned to Dimensions.
Best first test: open it and read the current interface before choosing.
Needs testing: available destinations, unlocks, return route, and mode interaction.
X · Combat
Mech Blaster
Official fact: X is assigned to Mech Blaster.
Best first test: identify its selection separately from Portal Gun.
Needs testing: damage, firing input, resource, cooldown, and PvP rules.
V · Combat
Robo Arms
Official fact: V is assigned to Robo Arms.
Best first test: observe the current tool or animation away from a crowded fight.
Needs testing: attacks, range, state changes, recovery, and device layout.
Use the list as actions, not promises
The official description confirms a key and an action name. It does not publish every operation after selection. For Portal Gun, it does not state which surfaces accept a portal or how many can exist. For Regenerate, it does not state an amount or cooldown. For Mech Blaster and Robo Arms, it does not publish damage or input sequences.
Start by confirming that the named action appears. Then follow the live UI and visible feedback. This keeps a guide useful across beta changes and prevents a tool name from becoming an invented mechanic.
The Blender order is different
Blender Dimension is the one control with an explicit sequence. Press F while you are still outside the portal, wait for the current feedback, and then enter. If you cross first and press later, reset and try the listed order before troubleshooting.
Keep T and F conceptually separate. T is the Portal Gun action; F is the Blender Dimension choice before entry. Selecting the gun does not replace the Blender step, and Blender does not prove that the Portal Gun itself changed.
Resolve the old control conflict
Some community pages captured an earlier list with Q for Knife and X for Laser Pistol. The official experience description checked on October 29 instead lists R Dimensions, X Mech Blaster, and V Robo Arms. Treat the older list as a dated snapshot, not an alternate binding that is guaranteed to remain active.
If the live game visibly offers an older action, record the server and UI rather than mixing both lists into one definitive map. Beta servers can differ temporarily, and a creator may change a description before or after a deployment. The official current snapshot remains the safest public baseline.
Mobile and controller controls
The developer says the experience is compatible with all devices and excludes VR. That supports availability, not a specific button diagram. Touch players should use the action label visible on screen. Controller players should inspect the current prompts and Roblox menu. Do not translate T/E/F/R/X/V into guessed face buttons.
When reporting a device problem, name the device type, action label, screen orientation when relevant, and visible button behavior. “Regenerate button covers another control on a phone” is more useful than “E is broken on mobile,” because a touch player may not use the keyboard key at all.
Troubleshoot an input in five checks
First close chat and any text box. Second confirm the correct tool or state is selected. Third move away from a portal transition or crowded fight. Fourth repeat the shortest sequence once. Fifth rejoin a current server if the state remains stuck.
For Blender, include the before-entry order. For Regenerate, include whether there was anything visible to restore. For Portal Gun, include the target surface and any rejection feedback. For Mech Blaster or Robo Arms, include whether the action appeared and which next operation failed.
The game is labeled beta, so a repeated issue is possible. Never use an executor, unknown browser script, or account credential as a troubleshooting step.
Build a clean practice order
Start with Portal Gun and one returnable crossing. Add Blender Dimension as a separate before-entry decision. Test Regenerate when its result can be observed. Open Dimensions and read the current choices. Finally, learn Mech Blaster and Robo Arms one at a time before combining them with movement or PvP.
This order is not a power ranking. It simply moves from the game’s defining travel tool to a special portal sequence, then recovery, destination choice, and combat tools. Use the Beginner guide for a complete first session and Tips for beta troubleshooting.
Control questions
What key opens the Portal Gun?
The current official description assigns Portal Gun to T.
What does F do?
F is assigned to Blender Dimension, and the instruction says to press it before entering a portal.
Is X Laser Pistol or Mech Blaster?
The current official description assigns X to Mech Blaster. Laser Pistol appears in an older community snapshot.
Are mobile controls the same?
The experience states all-device compatibility, but exact mobile button placement was not publicly documented in this check. Follow the live action labels.
Source checked
Recommended guides
Choose the guide that matches what you want to do next.
Portal Sandbox Blender Dimension Guide
Use Blender Dimension in Portal Sandbox with the official F-before-entry order, a clean portal test, and careful beta troubleshooting.
ControlsPortal Sandbox Portal Gun Guide
Use the Portal Gun in Portal Sandbox with the current T control, a clean placement test, a returnable route, and focused troubleshooting.
ControlsPortal Sandbox Regenerate Guide
Use Regenerate in Portal Sandbox with the official E control, an observable recovery test, and focused checks when the action appears not to work.
All Controls guides
3 focused guides with steps, checks, and current caveats.
Portal Sandbox Blender Dimension Guide
Use Blender Dimension in Portal Sandbox with the official F-before-entry order, a clean portal test, and careful beta troubleshooting.
Oct 29, 2026Portal Sandbox Portal Gun Guide
Use the Portal Gun in Portal Sandbox with the current T control, a clean placement test, a returnable route, and focused troubleshooting.
Oct 29, 2026Portal Sandbox Regenerate Guide
Use Regenerate in Portal Sandbox with the official E control, an observable recovery test, and focused checks when the action appears not to work.