I got all the upgrades. Would just like to keep on playing if I had more stuff to unlock. I really like that the game rewards you for mastering the rolling mechanic. I got to a ponit where I do this when I enter a room: Check if there are flying pigs. If there are, roll to them and kill them in on hit. Next, are there orange slimes? If there are, roll and hit them once. Then hit blue slimes. Dodge orange slime projectile, hit orange. That was really fun.