If you dont have cheatengine, download it - http://cheatengine.org/ it doesnt have any virus.

Directions:

Open up icy tower and start new game. Then go to cheatengine and type in 0 in the bar then click Firts Scan. Then go jump to the next line and scan for 1 in the search bar. Make sure you click on Next Scan. Now go back down and then scan for 0. Then go back up scan for 1 REPEAT THESE STEPS UNTIL THERE IS ONE ADDRESS LEFT ON THE LEFT. Double click on the address bar and check it. Then go jump on one of the lines in icy tower and wait for the highscore.