Found this random iOS app called “Fat 2 Fit!”. Long story short, it’s in a similar style to like Temple Run where you have a character and can swap skins, etc. In this one, instead of grabbing coins, you grab stuff that makes your character fatter or thinner to complete an ‘obstacle course’.
The thinner version of the character can climb walls, jump over obstacles, and has better balance. When the character is fat, they can break through glass walls, (also a downside in that you can’t cross glass bridges that the thinner version can tiptoe across) and get more height from trampolines.
Three female skins, three male skins, a robot skin, a bear skin (not rug, just character selection) and a shark skin. Something for everyone: Not here to judge.
Per usual on most apps from this developer (or other devs with similar styles), toggling airplane mode can be a great timesaver for cutting down on ads. You do miss a 2-5x coin multiplier opportunity at the end of each course, so depending on how eager you are to get coins to buy a new character skin, YMMV.
Without ads you also miss a 3x key multiplier bonus to unlock chests. Keys pop up every other level or so, and lead to a free bonus game where once you collect 3 keys, you can open 3 chests to potentially unlock a character skin, gratis, rather than needing to spend in-game coins. If you have service, it allows you to watch an ad to unlock 3 more chests, which you can do twice (to be able to unlock all 9 that initially appear per round).