For those who aren't familiar with the ideas of Metroid, you start off with a very basic suit, and as you progress through the game your suit becomes much more powerful; it can take greater damage, it can move normally through water and it can take harsh environments. This would be one possible add on; make a DLC pack that requires you to go somewhere to find the suit upgrade, and then to travel to a location that would otherwise kill the player without the suit upgrade. Maybe make it so that the suit upgrade also has some nice add on for battle or something (can't think of a good example).
Another thing following Metroid style would be the idea of having different weapon upgrades open different coloured doors. In RAGE, this could easily be achieved by making a certain ammo type that can break certain materials that would then allow access to a new area. Again, some unique item to be discovered, maybe a new schematic for something quite different. The new ammo type could also have interesting effects on the enemies (mind control bolts are amazing!).
The last idea I have for now is the concept of adding more things like the Races and the Mutant Bash. Both of these are always availble to playa fter certain requirements have been met, so a DLC bundle that opened up a new area that you could always go back to and play (like Mutant Bash, but with the other clans maybe) would really add to the replayability of the campaign,a nd wouldn't make you want to restart as soon as you finished the game.
My main inspiration for the ideas is that you get your massive Authority Plasma/BFG, and you can't really do too much with it as the game is nearly finished already, there is not a lot of oppurtunity to reallly enjoy the gun. So this way you could go out there, face some new areas with all your weapons and really get to thump the bad guys in the Mutant Bash styled missions.
Anyway, hope you guys found this intersting, even better, hope id have read this :biggrin: and I hope that other people can add some suggestions of their won, or maybe just comment on what is already here.
