@dicklittle269, there is exactly the feature you want in the settings menu (the wrench at the bottom left) -- the "Drive Direction" setting controls whether you're always going left, right, or both.
Here's the number of coins you need to have after each level (not counting the first few without coins) if you're trying to collect all of them: 0.70, 1.45, 2.15, 3.70, 4.50, 5.75, 6.45, 7.30, 8.05, 9.50
I wrote a new walkthrough for this game -- you can find it here: https://www.kongregate.com/forums/3-general-gaming/topics/1846284-unstable-walkthrough
My Kongregate score seems to be stuck...I finally finished the game but my score is still on 17 kittens (and hasn't submitted anything new lately). Maybe something got broken in the most recent update?
For anyone curious, it looks like the directions for "Stack" should be "Return the value in(I) - in(I-1) + in(I-2) - in(I-3)..." I might have the signs backwards depending on whether you count the last element (0) or not, but that's the general idea.
I hit a small bug: I got stuck outside the guy's house, so I took a break, and when I came back and loaded my game, I was already inside! Saved me some time but I wish I had had a chance to figure it out myself.
In Squares, "Show incomplete" is very frustrating -- it's very difficult to see which square is actually in the center! It would be much more helpful to have it highlighted or flash or something to make the square more obvious.
Something weird happened...when I reached 800 (not 1000!) points on the last level, it told me "You beat the game" but it kept going, and it was playing both the final music and the music from the level at the same time (which was very confusing).
OK, now that I finally beat level 5, here's what I think is the best strategy: always be sprinting -except- when you hear the warning for arrows coming from in front. For those, you have to slow down so that you have enough time to react to the next threat after blocking them. Good luck!
Hmm...a pair of bumbling sidekicks named "Bop" and "Rock" that look like animals. This definitely reminds me of something. Maybe if I ate some pizza, I could remember what.
Sorry, I'll look into the issue!