My son wants disco Chomper very badly how do I unlock him?

@milesmob4 either play infinity mode which would need to play more waves to unlock the legendary chest, or play and farm enough cash and visit the Sticker Shop in the backyard, from there you're going to buy the Wondrous Pack of Greatness Pack one pack costs 35,000 coins, you'll need 2 character pieces since the Disco Chomper is under the legendary category, but have in mind the legendary pieces drops ain't that great, so you'd have to farm lot of coins, if i remember right i spend like few millions coins to unlock some characters, so good luck you'll need it 😉