What is the highest level you got on robokill (the free version)?

i got up to level 16 then for some reason i can't level up now. I think this is because the creators dont want you getting all the weapons!

I was actually able to level up and get the pulse gun without purchasing. You can't rely on trying to rampage through the first couple of levels to try and level up ;-)

how? no matter how hard i tried i couldnt get past 16

i cant go to episode 2?!?! with out buying it

I have a registred version and I am stuck in level 34. It does not matter if you re-play all missions; it is not increasing.

I got the same, but I'm stuck on level 37.
And heavy shredder is available from 40 :/
I'm on Mission 11.

It seems you cannot gain any more experience if you don't end the mission.
After I started mission 12 I leveled up easily to 38 and counting :)

XP level 43 is the highest you can achieve atm

hehe i am lvl 16!!

I cant level up to level 20! I need to buy the full version

As mdmatze said: the highest level is 43. You cannot level any higher even after beating the game multiple times.

you can only level up a certain amount on each map as Greybrow said, as far as I can tell, 43 is the highest level I've reached...