These games have been finely crafted over the last 25 years:
2-4guts-pot-doubler: players ante one .25 chip, each player gets 4 cards, no jokers in deck, 2 and 4 wild, no straits or flushes, dealer says 1..2..3..drop, any players holding cards (did not drop) compete against each other and ultimately the dude. Each player decides to throw away and receive 0, 2, or 4 cards. Players reveal their cards but then must fact "the dude". The dude gets 4 cards off top of deck placed face-up and dealer choice who at the table decides to act on the dude's behalf and take 0,2,4. Winner takes the entire pot. Losers pay the entire pot. To win and end the game requires being the sole player to go and beat the dude.
3-5-7guts-pot-doubler with a peg: no jokers, no dude, players ante one .25 chip, each hand involves 3, then 5, then 7 cards dealt progressively where wilds are 3, 5, 7 respectively with a drop at each round. If multiple players hold at round 3 or round 5 then players exchange cards secretly to avoid revealing their hands. Note THREES are wild only at the 3-card drop, FIVES are wild only at 5-card drop, and SEVENS are wild only at the 7-card drop. The 5 and 7 round are BEST 5-CARD POKER HAND. The twist starts when only one player holds for a round and earns a "peg" (the peg can be a bottlecap, special color poker chip, chew can, whatever). To end the game requires earning THREE pegs. Pegs also offer a bit of insurance and bluff opportunity because a peg can be forfeited rather than reveal cards in a showdown. If multiple players hold at a round, then *before revealing cards* all players with one or more pegs take a peg and secretly put it in their hand, dealer says 3..2..1..reveal and if a player hand is EMPTY then they forfeit the peg and DO NOT PAY POT. If multiple players reveal a peg in their hand then it's a normal showdown and winner takes pot, all losers pay. If only one player reveals their peg then they either win another peg or win the game. Needless to say many TWO-PEG-STRATEGIES exist and offer great fodder for debate. Wrinkle, if all players drop in a round then the dealer can call for an additional ante as punishment to help build up the pot (up to a table agreed upon max such as $4 in the pot).