I'd say it's pretty repetitive after like 2 minutes, since there's basically no threat for the player to avoid. About progression, only the "bigger bomb" upgrade is actually useful since the other two is just unnecessary after like 2 upgrades.
I know. I would like to add enemies and stuff, but what's gonna kill a bomb? Also I think it's leaning more towards the incremental/idle genre. I also just didn't have time to add anymore content. The polygon booleans and terrain generation were harder than I thought they would be.