Easy Size Obby Guide: How the size mechanic works
About
OverviewEasy Size Obby is a Roblox obstacle course where you shrink or grow your character to get through more than 50 stages. This guide covers how the size mechanic works, how to push through stages when you get stuck, and how to tackle Hard and Extreme modes once you're ready.
What is on this page
Contents
How the size mechanic works
Summary
Every stage is built around two states: small and big. Small gets you through tight gaps and narrow paths; big lets you clear tall walls and high ledges. You switch between the two using the on-screen buttons on mobile or keyboard shortcuts on PC.
- Small lets you squeeze through narrow gaps and low passages
- Big lets you reach high platforms and clear tall obstacles
- On-screen button tap it on mobile to switch size
- Keyboard shortcut switches size on PC without touching the screen
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Hard mode and Extreme mode
Table
Beyond the main 50-plus stages, Hard mode and Extreme mode are available for more competitive players. Extreme mode has its own completion badge, which is separate from the standard and Hard mode badges.
| Normal completion | clear all 50-plus stages to earn the Finished! badge |
| Hard mode | has its own completion badge |
| Extreme mode | has its own completion badge |
Rewards and stage milestones
TipsThe game hands out a badge every five stages from stage 5 through stage 50, so you always have a nearby goal to chase. Completing the full course earns you free exclusive rewards at no cost. Every badge and reward is available without spending anything.
- A milestone badge drops at every fifth stage — stage 5, 10, 15, and so on up to stage 50.
- Finishing the normal course earns the Finished! badge along with exclusive rewards.
- Finishing Hard mode and Extreme mode each earn their own separate completion badges.
- All rewards are free and do not require any purchases.
Glossary
Glossary- Obby
- Short for obstacle course — a Roblox game type where you jump and climb through a series of platforming challenges to reach the end.
- Size change
- The core ability in this game that lets you switch your character between a small state and a big state to navigate different obstacles.
- Stage
- One individual section of the obstacle course; the game has more than 50 of them.
- Hard mode
- An optional difficulty in the game for more competitive players, with its own completion badge.
- Extreme mode
- The hardest difficulty in the game, for more competitive players, with its own completion badge.
- Exclusive rewards
- Free in-game items you earn by completing the obby course.
Common questions
FAQDo I need to spend Robux to finish the game?
No. Every stage, both difficulty modes, and all the exclusive rewards are available without any purchase. Nothing in this game blocks your progress behind a paywall.
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