Thank you for trying out the demo.
Level transitions are very placeholder at the moment, they no doubt need improvement.
The game will speed up once more content and upgrades are in place, so scaling the rooms down would be limiting later on. That said, if the start of the game feels a bit slow now (aside from it feeling WIP-slow) I may turn some of these rooms smaller. Do you have feedback on any specific one? Thanks!
Likewise, the usability of the secondary shot should improve greatly once more upgrades are in place. For now, you can shoot at it to trigger it yourself again, but without upgrading, its main use is more centered around breaking root walls.