Yes, upgrades work in Hard mode. You can find a guide of H1-3 in the discord server.
could you send a link of the video or the guide here?
also for some reason i cant use the seapuffshroom in the water in stage 58
It's a known bug. I'll fix it in the next patch
so can you send the link of the video beating the 1-3 hard
here or in youtube ?
