Here's a few of the reviews we've got so far from the worldwide gaming press.
Let us know if you see more of them (even bad ones, we need at least one of those! :p)
In English
9/10 on Gamespew - http://www.gamespew.com/2017/02/splasher-review/
4/5 on Slant Magazine - http://www.slantmagazine.com/games/review/splasher
In French
17/20 on JeuxVideo.com - http://www.jeuxvideo.com/test/604542/splasher-quand-super-meat-boy-rencontre-splatoon-sur-pc.htm
8/10 on Gamekult - http://www.gamekult.com/jeux/test-splasher-SU3050509269t.html#pc
17/20 on GamerGen - http://www.gamergen.com/tests/splasher-note-avis-review-plateforme-super-meat-boy-splatoon-speedrun-splashteam-280309-2
09/10 on Actugaming - http://www.actugaming.net/test-splasher-un-jeu-de-plateforme-tout-en-peinture-tres-reussi-76976/
In Spanish
9/10 on Desconsolados - http://www.desconsolados.com/analisis/splasher/
In Italian
8/10 on IGN Italia - http://it.ign.com/splasher-pc-1/121692/review/splasher-la-recensione