The various characters that appear in each of the Pushmo games.
Mallo
The lead hero of the first game, he resembles a rotund, red sumo wrestler and is generally tasked with saving trapped children within the Pushmo world.
- Acrofatic: He's a little on the chubby side, but can easily jump from block to block without tiring.
- Cartoon Creature
- Faster Than They Look: More like agile, however. You'd expect someone of Mallo's girth to be unable to jump up block puzzles, yet he can leap with the best of them.
- Friend to All Children: Granted he saves them when they need saving. This is the storyline of his special level pack in Stretchmo.
- Heroic Mime: Mallo never makes any audible sound.
- Nice Job Breaking It, Hero: While he's the hero, he accidentally scares away Poppy's birds in Crashmo. In Stretchmo, he trips on a rock and shoves Boppo by accident, causing the robot to press the reset buttons on the Stretchmo Land puzzles, therefore trapping children once again.
- Stout Strength: His chubby appearance does little to undermine the fact that he can move giant block puzzles with ease.
- Time Master: Sort of. While not necessarily Mallo's power himself, the player can rewind time to fix mistakes with the L button (Pushmo/Crashmo/Pushmo World) or Y button (Stretchmo). Applies to the other playable characters as well.
Poppy
Debuting in Crashmo, Poppy arrives in Crashmo Park on a hot air balloon made of rainbow colored birds (yes, we're saying that right). She's apparently related to and looks similar to Mallo, but yellow, and sports twin pigtails, a blue beret, and a red neckerchief.
- Cartoon Creature
- Faster Than They Look: Poppy looks slightly thinner, but you can assume she's quite heavy herself.
- Nature Lover: If Crashmo is anything to go by. Sort of her theme in Stretchmo, as most of her mural-themed puzzles are in fact, animals.
- The Smurfette Principle: While the various rescued children could be either gender, Poppy is the only character we've seen so far who is referred to as female.
Corin
The antagonist of the first game, responsible for trapping the children in the Pushmo puzzles, only because he was lonely. Is smaller than Mallo and the others as he's younger, sports a black color and a red sideways hat.
- The Apprentice: To Papa Blox starting in Crashmo.
- Cartoon Creature
- Fearless Fool: Despite the reasoning for his actions, he's still brave enough to try and attack Mallo, despite the latter's bigger stature. He also counter-scares Buppo to prove he's tough enough for the Fortress of Fun.
- Not Evil, Just Misunderstood: Turns out at the end of Pushmo, he was just a lonely child who recently moved into the land. The children welcome him with open arms.
- Jerk with a Heart of Gold
- Kids Are Cruel: Sort of softened once you find out why he trapped the children in the first game.
- Leeroy Jenkins: Sorta pulls this in the end of Pushmo where he tries to rush attack Mallo.
Papa Blox
Mallo's mentor from the first game, teaching him all about Pushmo puzzles. His initial role is taken by Bappo in Stretchmo, due to Papa Blox's promotion to a playable character in the NES Expo. He's purple, sports a beard, and wears brown overalls.
- Cartoon Creature
- Cool Old Guy: He's even built some puzzles in his spare time, and it's hinted he really likes old-school Nintendo games, if his Stretchmo level pack is anything to go by.
- *Crack!* "Oh, My Back!": Undergoes this in the earlier games, but by Stretchmo, he's feeling better enough to take on a pack's worth of levels.
- Finger Wag: Does this when he beats a puzzle in Stretchmo.
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Nintendo Hard: Has the hardest-rated pack of the four characters in Stretchmo. Though the Perilous Peak is implied to be harder.
The Children
Various children who are seen playing on the Pushmo/Stretchmo puzzles...at least until they get stuck in them from Corin (Pushmo) or Boppo (Stretchmo) hitting the reset button.
- Cartoon Creature: They don't seem to have a sort of head area to speak of, and are really just spheroid critters with arms and feet.
- Easily Forgiven: They get stuck in puzzles (the first time around on purpose, mind you) and yet they forgive Corin and Boppo in the end.
- Improbable Hairstyle: All the children that don't wear hats have otherwise silly hairdos, even some in Pushmo that resemble teapots of all things.
- Ridiculously Cute Critter: And how. When they're given sound in Stretchmo, their giggling when you save them is freaking adorable.
Guide Robots (Bappo, Beppo, Bippo, Boppo, and Buppo)
Five guide robots who run each of the attractions of Stretchmo Land. Each is seen in an intro cutscene to each level pack.
- Alliterative Family: all of their names are essentially the same, but with a different vowel in the second position.
- Face–Heel Turn: Sort of with Boppo, but moreso because he malfunctions after an accidental Mallo shove and goes berserk, hitting reset buttons when the children are still on the Stretchmo puzzles.
- Heroic Self-Deprecation: Boppo at the end of Mallo's Playtime Plaza, blames himself for his malfunction and doesn't think he can be a guide robot anymore. Bappo and the children say otherwise.
- I'm Standing Right Here: An oblivious Poppy accidentally gets so entranced in the Sculpture Square that she ends up standing on top a sideways Bippo.
- The Quiet One: Beppo is perceived as the shyest of the five.
