This is one of the best games I've ever played.
I accidentally stumbled upon this game while I was looking for something featuring pandas, since my girlfriend absolutely adores them. The game looked interesting so I bought it for myself in order to try it out - and boy, was I surprised. Even though you can 100% complete the game in about ten hours, those ten hours feature pure entertainment. From the open world & world map (featuring two different worlds), experience gathering, levelling up and spending skill points on abilities, doing side quests for NPCs which often contain good humour, to cute graphics and light-hearted characters who actually point out some of the real-world problems and give the game great depth.
There, I mentioned some of the reasons I love this game, and there still remain some I haven't even touched. Upgradable weapons and armor, combo bonuses, awesome soundtrack...you name it. This game doesn't aim to be epic & humongous, but it still aims to be devilishly good in its humbleness, and it is.
The only negative thing I have to say about the whole thing is the fact that some of the game's bosses feature large difficulty spikes, especially the last boss. I think you'll always feel like the boss is one scale higher than the difficulty you're currently playing on (there are about five difficulties, if I'm not mistaken). But if you like to play on easy, then you should be able to beat it without any major issues.
So if you are still thinking about whether you should get it or not, go get it right away! The 4€ price is super small considering how good the game is, and this is coming from a guy with some serious budget issues. I got the game on a discount for 3€ and I feel like I ripped off the developer.
I seriously hope for Super Panda Adventures 2 or something like that.