This is a fantastic idea you are going for.
There is quite a big room for opportunities for that kind of game (even more meta once)
and that you added in achievements is huge plus.
For some feedback:
- Try to find am easier way to teach the player. In the current setup it is a bit hart to figure out.
- As you stated in your description, the collision detection can be improved on.
- And finally I think that the game can benefit from some good graphics and sounds.
Probably one of the most original submission of the jam.
I'm curious to were it lands in the final ratings.