You can probably beat the hidden minigames, but can you beat them like this?
These are the challeges!
Art Challenge: Wall-nut: Beat the game without imitater wall nuts
Sunny Days: Beat the game without clicking any big sun.
Unsodded: Beat the game without threepeaters, starfruit, or anything like that. Instants are available.
Big Time: Beat without .wall-nuts
Art challenge sunflower: Beat without planting sunflowers.
Air raid: Beat without blovers
High gravity: Beat without fume/gloom shrooms.
Grave danger: Beat without Grave Busters.
CYDI?: Beat while only digging up 5 wall-nuts.
Dark Stormy Night: Beat without Peashooters (You can use cactus)
Bungee Blitz: Beat without using Cherry Bombs.
Survival endless levels: Beat all of them 50 flags with a cobless strategy.
Squirrel: Beat without letting a zombie bite 2 wall-nuts.