This was a fun little experience, I think with a little more polish this could be a fun game. I also think that a way to "gain" time would be a good addition, maybe a truck is waiting to be loaded up and as the player brings trash the truck will wait a little longer. Something like that. Otherwise well done. It was a good little game.

With more polish and another mechanic I think this could be a fun game. What if the player had to grab and throw litter into a big trash can, or sort between recyclables and trash?

Neat game - good job

Cool game, liked the concept. 

few suggestions:

add sound effects, time is too short, make it such that player have to pick up trash and put it in trash bin/truck/ burn it etc and in return it increases time.