From the creators of Ultimate Battle 22, I comfortably refer to Taiketsu as a refinement in cruelty. While we can blame some failure of Ultimate Battle 22 on the console and time of release, Taiketsu receives no quarter.
Released for the Gameboy Advance, Dragon Ball Z: Taiketsu is a book that should be eagerly judged by its cover. The graphics push the edge of madness, with the only semi-accurate visual comparison being your first originally created Mugen character. Gameplay is non-existent, an absence of enjoyment that can only come from repeatedly mashing buttons that possess wildly interpretive hit boxes, regardless of what difficulty in name only you've set the AI to. The music is a fever dream, impossible to recall regardless of circumstances. Shockingly enough, the game features link cable support as though you are being encouraged to introduce friends and family to this negative improvement on its predecessor.
Taiketsu's genius is how uniformly bad it is, and how it takes no time introducing you to that world. From the moment you see the Gameboy Advance logo flicker to life, you have entered a carefully structured pocket of unpleasantness. No time wasted.