Boys Adventure:

In Brief:
Boys Adventure is a 3D third person action platformer created using the Unity engine.

Avoid the obstacles and traps. Judge your jumps to avoid falling into the abyss and watch out for those traps. A word of warning, jumping or walking onto moving platforms will still see you fall into the abyss unless you walk with the platform. Yes, that's not something I've seen previously in one of these 3D platformers. Whether this was intentional or not, it's going to make traversing each of the levels that more difficult. What's even better (or worse) is that on top of the need to keep walking while on a platform, they're largely covered in spike traps, so it's hard to avoid dying unless you are very precise in your movements.

The graphics are typical Unity assets. They remind me of a game my son used to play called Atmosphir. In that game you can create your own 3D platform worlds. Sadly, the developer ceased development of the game over a decade ago, but you can still download the original game with all the assets that were made available at the time it was closed down HERE. It's now maintained by enthusiasts of the game.

You can see a video (frustrating) of game play HERE

Conclusion:
I gave up after several attempts, so cannot say how many levels are included. Having to walk while on moving platforms stopped me playing it in the end, though I did manage to stay on the first moving platform (just). This is not a game I'll be returning to. Though I would suggest you check out Atmosphir.

Notes on Security
I scanned a zipped copy of the installed game using Virus Total and it found zero hits from 62 antimalware engines. You can see a scan of the installed game HERE