Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Find the "easy.var" file in the "\25 to life\data\var" folder. Uncheck the read-only attribute of the file, then use a text editor to open it. Find the "AI2PlayerDamage 0.14" line and change the "0.14" to "0.00". You will now take no damage when the game is played on the Easy difficulty setting.
Successfully complete all twelve levels and mission objectives to unlock the Beatdown bonus level. The bonus level is fifteen waves with no reward.
Level 1 "Warehouse"
Level 2 "Apartment"
Level 3 "Downtown"
Level 4 "Culdesac"
Level 5 "Club"
Level 6 "Subway"
Level 7 "Tijuana"
:Level 8 "Casino"
Level 9 "Penthouse"
Level 10 "Prison"
Level 11 "Mall"
Level 12 "Hacienda"