An awesome sidescrolling action game with punching and limited shooting.
As far as can be seen the 18+ at the beginning is only for gore and not nudity. After clicking the first orange arrow, click the 2nd row of boxes on the right side of the screen. Then the next 4 rows of clickable boxes I believe represent difficulty. Just click a whole lot to past the intro cinematic.
Controls:
(on num pad)
0 - pull out gun / put away gun. (have limited bullets)
1 - Punch (or fire if gun is in hand)
2 - Jump
3 - Punch ground to knock away close enenmies.