(I’m comparing to our take on reverse Arcanoid, huh)
Nice art-style, but lack of different blocks and not giving time to decide on upgrades feels tough
Viewing post in PlaceIn jam comments
You can use the core upgrade to unlock new blocks to place so players have some kind of progression. I personally feel like 30 seconds to decide for an upgrade (+ I think it was 5 or 10% more after each upgrade) is enough to decide. You can also always stop time by dragging a block if that's not enough in some cases ^-^