“If jumping like Mega Man, shooting like Mega Man and sorta looking like Mega Man were enough for Capcom to slap a Mega Man name on 20XX, they totally would. From the smallest increment to positively destroying a series of bosses in a single run, the best thing going for 20XX is that it feels really good to play.” – Eduardo Reboucas, Entertainium
Source: N4G PC 20XX is a Mega Man game in almost everything but name | Entertainium