Bomberman Max: Red Challenger

I play through the main game, then go back and clear the leftover levels in order to even see the ending. Since the game is designed like a maze, I do some slight editing and off-screen "warping" by going to the closest levels with unopened gates and clear them from there. After all, I wanted to shorten the longplay and not make any more wandering than I needed to. Also, both games have exclusive levels that the other lacks, so 80% is as far as I can go without connecting to the game's Blue counterpart.