All of your requests have been fixed! This includes the following :
1) Instadeaths are fixed!
2) Full controller support.
3) Added an indication to the blocks that are about to be destroyed.
4) Fixed gem counter.
5) Changed the pitch of the jump sound that made it sound like a glitch
6) Added gem counter in game.
7) Made more precise collision calculated for the player.
8) More gem drops (yay!)
9) Changed (a bit) the box spawning algorithm.

Thanks for playing!

Tags: 2D, gamemaker, GameMaker Studio, GML, hellblocks, ldjam, Ludum Dare, progress, screenshot, update