some challenge ideas
Alright if you have played pvz 1 you probably remember I.zombie, ya that's the whole challenge and if people like it enough you could possible make it a game mode. if you have never played I.zombie basically the roles are switch, in this challenge you would control the monsters trying to get into Issacs house.
"Backasswards", if you played Tboi you could probably guess what this is. You will start at Ark 3/the boss fight and when you win you will go up a floor, losing a baby each time you go up and losing an item/s when you kill a boss.
"Inflation", make all heart income haled or make everything cost 2x more. and if this is still to easy, make the falling heart not appear so your only heart production is from your chads
"Get active", you get a set of 4 active items, but you have no babys so you have to survive using only those active items. You can make it so they have half cooldown or you can choose what items you get, idk
"Pitch Black", basically everything is really dark and you can't see the enemies but you can use crispy baby, paschal candle, or anything that's on fire to provide light
"you heartless bitch", it uses the hard mode system of hearts, and you have to get to 40 hearts total before you die, and the wave you are in is endless and ramps up in difficulty.
"attack on titan", there's one huge fatty/stoner, like if you use mega mush, that's how big it would be, you have to select a team that can kill it before it can make it to the end, it can stomp on baby, killing it , and it can be hit from any row.