Softmods, TSOP flashing, modchips, BIOS choices and dashboards.
Which route suits you depends mostly on your board. A 1.0 through 1.4 has a
TSOP you can flash; a 1.6 does not and needs a different approach entirely.
Say which you have and the advice gets a lot more useful.
Please do not post links to game files or BIOS images here.