Here's the big problem with the game. Objects fall out when you just touch a big object. What it should be is that depending on how hard you hit an object or wall, a certain amount of objects fall out. Touching an object should not cause objects to fall off. You should maybe learn from Katamari Damacy's bumping mechanic and fix this issue.
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Working on a version that has a hidden velocity stat.
Moving forward increases it, turning lowers it slowly, stopping lowers it quickly.
You lose only up to 3 items now, if you hit an item with high velocity you lose 2, and medium velocity you lose 1. (Turning puts you slightly below medium velocity, so moving forward right after a turn makes you lose 1 item)
After about 1.5 seconds you will lose 1 item.
After about 3 seconds you will lose 3 items.
You lose "velocity" faster than you gain it, so it should be easier to nudge an item to test if you're big enough if you're careful.
This may be imbalanced.
It should be uploaded now as version 51 (as i dont want to use decimals)