There are many things that can be improved. This is also a rip off of Toss The Turtle (which is awesome btw). You bounce way too much and that can make you have to wait forever especially if you are going fast and kepp catching things that make you go up or faster. Also as mentioned by LeonGoldMage it would be much easier to be able to use the keys 1-6instead of having to go back and forth trying to shoot your robot. rate + if u agree!
totem workshop needs a remove last added or something. its annoying having to restart ur totem every time because u realize that something wasnt right. rate this up so editor can see and might change it
Totem editor should have an erase tool, it would help a lot instead of having to restart the whole thing if u only wanted to change a little deatail. :) rate this up so Tigrounette can see
overall very good game, a few suggestions i have;first make it manual scroll, next if u can upgrade ur troops before or after the levels so u dont always have the same basic guys and start from the beggining, would be nice if u could combine drops as NeeL said,maybe add some special skill (e.x. Meteor Strike... or something like that), also rate this up AND ADD BADGES!!