Writing this so that it's not forgotten. Reported by Muervo.
Had a bug report today, i feel like this has been reported tho
Entering Bombers code on a fresh cycle and exiting the Hideout gave the player a heart piece.
This is after they've done the minigame once, and their reward from that was also a heart piece.
0.9.3 version on Steam Deck
Writing this so that it's not forgotten. Reported by Muervo.