User blog comment:Tecku/TT: Garden Warfare Map Design/@comment-5760976-20160401011118/@comment-5792287-20160409130017

I just unlocked the movement speed bonus for default Imp (fourth upgrade I got), and...well...

Yes he's faster, but only by about 10%, tops. The move speed change is MUCH less noticeable than the upgrades for Chomper in GW1. So while they can move faster, I don't see it making the game much more unbalanced.

Also Lily, I think Cactus probably has it as the second upgrade because for a sniper, movement isn't that important. It's probably not a very good upgrade for a character such as Cactus, since she sucks at circle-strafing and focuses on sniping, so zoom/damage is more important. Keep in mind that most characters seem to have zoom as their second upgrade, yet since zoom is more useful for a Cactus, it's probably a later upgrade.