The concept is fun but the gameplay is soooo slow. early game upgrades are too weak and good, fun, & powerful upgrades are lock behind too many other upgrades with too high of a cost. I started to have fun seeing the block breaking and my exp rising quickly in the last 20-30% of the game when I'm buying off the last couple of upgrades & I could get like 50k exp every run. either make the upgrades more powerful early on or make them far cheaper to upgrade so you can get to the powerful ones sooner.