7) Steambot Chronicles (PS2) This game deserved so much more, man. So much customization (outfits, your mech), so many fun mechanics (multiple instrument minigames)... it's like an open-world Armored Core in the world of dieselpunk Mega Man Legends. What a gem.

8) Mega Man Zero 3 (GBA) The Mega Man Zero series is painfully underappreciated, and Zero 3 was its crowning jewel. It's basically a 2D character-action game. Wild mechanics, surprising amounts of customization, and part of a great arc for a great character.