I still can't beat the 4x4. I can get to step 5 above but, I never get the block shown in step 6. Any other ideas on how to beat this one?

Don't do step 5 until you see the required step 6 block coming right after the step 5 block. Throw all other blocks way off to the side.

I naver had it come right before, only with THREE blocks IN BETWEEN. Fast-moving

I'm at 0123 at the puzzle level, right after clear 20. Clear 20 took me two tries. The figure ones I do on the first try. I haven't tried 0123, I'd rather study now and play at work. This game is awesome

Puzzle mode was by far my favorite, however, I lost interest in the rest of the game as it just took way too long to play every time in challenge mode. Once I beat all the puzzle mode and most of the X2 puzzle mode I sold the game.

I finally got the 4x4. Thanks for the input Deb.

Man the Alligator X2 gave me tons of problems. It took me ~30 tries to get it. I got the first one no problem but I couldn't clear the area fast enough and get the second one fast enough before the time ran out. (0123 was hard also as you do a number at a time and, again, clearing everything out is the hardest part).

Now, any tips on doing 4X4 X2? Again, I'm stuck at the clearing, re-doing.