This is something I find fun to think about more than it's a suggestion, but I guess I should put it here, nonetheless.
Hardcore Mode. You set the lives you want to play with - 1 to 10. This is essentially how many times you allow yourself to die and reload. You can only save in places like SGS, Core City, ect., and the game keeps a log with your deaths plus you can add notes to each. Whoever beats the game with 1 life gets the Ultimate Hardcore Dominating Achievement(although I guess you can cheese that with backup save files...). And we also get to share our ridiculous failures like failing to land a Throwing Net on a frozen target, ect.
