The best Spot-the-Difference game ever, and it isn't close. Everything is prefect - the differences arereasonable, you have unlimited clicks (so no walkthrough necessary), the artwork is awesome and the jokes are fun. And most important - I have never before seen such a game woth movement and mirrored images. Excellent. 5/5
On extreme you can get to 1300 kills without even paying attention; then suddenly the monsters are twice as tough, and you won't make it to 1400. So look up the combos before you play, or you will get 1389 kills again and again and again.
Anyways, you can even beat the game without buying creativity at all. Just remember - the bouncers only work if you fall from really great height, so fire all engines immediately.
SPOILERS - Walkthrough - Rd1, make $70+, then buy soda, use directly after start in Rd2, make $150+, then buy 2 sodas and 1 ski, use both sodas directly after start in Rd3. Rest is obvious.
 "Zilch"){kind=icon}
 "6 Differences"){kind=icon}
 "Don't Look Back"){kind=icon}
 "Monsters' Den: Book of Dread"){kind=icon}
 "Onslaught2"){kind=icon}
 "Micro Olympics on Mars"){kind=icon}
 "Doeo"){kind=icon}
 "Castlewars"){kind=icon}
 "Line Game"){kind=icon}
 "Epic War 3"){kind=icon}
 "Vector Runner"){kind=icon}
 "Micro Olympics"){kind=icon}
 "Crush the Castle"){kind=icon}
 "Turkey Fling"){kind=icon}