My answer is YES, hippos can! This game took me in 90's, to my childhood. These dragons are beautiful. And the main character's avatar... hmm, honestly The Hippo could play the main role in StarCraft2 instead of Jim Raynor lol.
Besides what was said, this game has well designed core gameplay, the shop is an addictive thing indeed. I reached 2k altitude and it was success. After 5 or 10 minutes I was easily fly after 12k. The progress brings so much fun. And of course money counter, very chaotic yet fun. Excellent example how to fit chaotic theme but stay interesting and engaging.
Congrats!