Ecstasy!!! is a scrolling shooter based on Soreyuke! Burunyan-man Hardcore!!!, and includes elements from its PSP port. Though selecting a certain character in Ecstasy, Dark-Burunyan-man, will display explicit adult content, runs of the other characters do not, and should be suitable for all viewers.
The earlier mentioned PSP game, Portable, does not contain this content anywhere in the game, and as such is also suitable for all ages.