I think there's something else in that weed. ;)
I like it! Trippy and fun, here's some critique: some of the backgrounds could use some more work (like the one at 30 seconds in, the dart board doesn't really make sense and the perspective could use some work), but it's only shown for a second so it's not too noticeable. It could also use some more background music and sound effects. Overall, good job, looking forward to seeing more of your animations in the Portal :)