Working SI test Codes
Last updated August 21, 2026
No working codes right now
We're tracking SI test and will list codes here the moment the developers release them. If you spot one first, send it our way below.
How to redeem codes in SI test
- Launch SI test on Roblox.
- Look for a Codes, Shop or settings button — usually on the side of the screen.
- Paste the code exactly as shown above. Codes are case-sensitive.
- Press redeem to claim your reward.
Codes expire without warning — if one fails, it was almost certainly pulled by the developer.
Found a code we're missing?
Submit it and we'll verify it before it goes live.
About SI test
For developers to test [APRIL FOOLS EVENT 1/4 - 20/4] - Jet buses - Exclusive jet bus routes 41AF from Sunshine Station, flying around the center of the city! Welcome to Sunshine Islands bus simulator, the largest bus simulator in Roblox. Enjoy the realistic Hong Kong based bus driving experience with different features! - AI Passengers - Realistic bus interior - User-friendly GUI, available on all devices - 25+ routes to play - Weather Apart from driving bus, you can also have a roleplay as a passenger, explore the city or drive ships or ride a bicycle. ⚠ The game is very big, low-end devices may suffer from lagging or even crashing. ⚠ This game is still in developing, please give a like to support this game :D If you find any bugs, feel free to report it in the community server!