The game inside unity engine works fine, but I faced a lot of issues when building the game. It functions a lot different. I made a whole system to give you different power ups as you level up, however it glitched in build and appeared before leveling up. It would then create double ability usage which cost double o2 than normal, making the player die a lot faster. I did fix that in code to make it not appear before leveling up to level 2. However, it seems like I made it worse. It doesn't show up sometimes now lol. These ability would help a lot at the end of the game, but the game is beatable without any abilities.