Yeah, that looks like a Papi game, but without the global high scores there seems little point. PapiJump Plus is great, but would I play it if it didn't have global high scores? Probably not. I don't play any of the Papi games much when I don't have an internet connection. So this game seems to offer something akin to the free Papi games, but charges for it. PapiJump Plus has multiple variations and is a lot of fun, plus the global high score lists (for each variant) and thus is worth the price. This game I'm not so sure about.
I decided to buy and I have to say I am impressed. For $.99 this game is worth it in my opinion; it brings back memories of falldown on the Ti-89.
I would recommend it, but I made it. Your right about Falldown. I made Hairball for that reason. I loved playing falldown on my TI-83 in High School. So, if anyone has nostalgia for falldown I would try Hairball!