https://www.y8.com/games/alien_jump_html5
Alien Jump - Play Now on Y8.com
Take a charming space creature on a galactic jump over space! Gather cash, stay clear of obstacles, and stay out of the abyss! As far as you can, go! Take your...
alien jumpplay nowy8
https://www.viz.com/shonenjump/alien-headbutt-chapter-12/chapter/49869
VIZ | Read Alien Headbutt, Chapter 12 Manga - Official Shonen Jump From Japan
No rings, no rules, no refs, but lots of aliens and headbutting!
chapter 12