Hey I saw a video about clipping in this game, which mentioned clipping through the gate in Cookie Race.
I got the clip on my second try (throw block at the gate from 1 step away, while walking towards the gate). This cuts the level in half, more or less.
this has been known about since this clip, but weirdly I got it on first attempt in video above. Could've just been coincidence, but I have also thrown the block through the gate a few times as well.
Ok so final conclusion: this can be fairly consistent. I tried to stand near the right hole in the gate and found pressing myself against the gate while holding the block helped set it up the spacing. Just throw and walk at the same time and it should work. Sometimes I noticed if you were too in the center of the gate near the X the block would just phase through into the kitchen, though am not sure of this entirely being position based. IL video yields full attempt session (while partially drunk mind you).