SupraDarky (yes, that SupraDarky) nominates:
Dustforce - Pillars of Pepper - https://youtu.be/TGFuSGi1bsw
Emil Chronicle Online - The Last Haven - https://youtu.be/m-J_t5v13_s
Machinarium - Pipe Wrench Dubstep - https://youtu.be/vaPoZftTROE
Ragnarok Online 2 : The Gate of the World - Shinkai (Deep Sea) - https://youtu.be/_FC3kLYLtgs
Tales of Legendia - Short Circuit - https://youtu.be/BETsI2XQ1AM