The basic controls are simple but feels great. Movement and jump is really snappy and responsive. One of the main pitfall for a jam game is making the game too difficult, but that's not the case in this game. It's just that the map is really big. Didn't played it for as long as many of the other commenters did, but since multiple different sets of tiles are used, the levels feels pretty different to each other. The secret paths are also cool, but I think they're a bit too random for me.
Overall, I think it's a solid baseline for an adventure-platformer metriodvania. Good luck on your next one!