Okay lets give this a go, made with the Unity engine. (Still think the name Wrrr is very strange!)
Nice handdrawn map at the beginning, little cartoon intro with stills. Controls work well but be nice if you could change the buttons, for some reason i kept pressing 'fire' thinking it was jump (Jump is obviously the button at the top).
Graphics look nice, great animation, first level was basic to get you used to it. Would like to know more about what to do, eg if i hadnt watched that gameplay video above i wouldnt know i had to rescue the 'mole' type creatures.
Finished the first level so the map gets coloured in and moves to the next part which i'll carry on later.
From what i've played so far well worth 69p if you like platformers, the video seems to show a fair bit of the game so check it out. Happy with my purchase, shall play this more later, great little platformer.