Ok, I actually finished it. Like bigdwhitefan22 already said, the UI can be improved, but all the elements of the classic rage games are there, and once you remember the pattern you can actually complete the level. Very nice, had fun.

I thought the game was pretty fun, even though it was a little unpolished. The main menu, stage select, and UI was very inconsistent in style and the presentation was pretty rough in general (although the in-game sprites were significantly higher in quality). Gameplay-wise though, the game was quite fun. Some of the traps definitely made me smile (I really liked the trap at the end of stage 3 and the door that softlocks you at the beginning of stage 4).  I see the link between the "Rage Quit" theme since it seems to take inspiration from rage platformer games (like Trap Adventure 2). 

There are a couple things that seem like oversights but don't really affect the game if it's being played normally:

- You don't actually need to collect the gem in order to complete each level, although it locks you out of the final level

- You can collect the gem in each level then die, and it still counts as you collecting the gem, meaning you can access the final level without actually beating a single level before it

These are nitpicks tho, I was just trying to see what would happen if I messed around with the game a little bit lol.  I really enjoyed this game, keep up the good work!