Hmm, I guess. (Plus the fact RMXP is designed for Windows XP and above).
At the moment I'm working on re-balancing the enemies to work with the new battle system.
At current, in the Beta area, the enemies are as follows:
Kobold - weak enemy, sword
Imp - weak enemy, daemonic/magic
Aquatin - fairly strong enemy, water magic
Rat - extremely weak enemy, bite
Elemental - weak enemy / fairly strong enemy, various elemental magic based attacks
Buzzer - weak enemy, sting
Arctic Wolf - fairly strong enemy, ice based attacks
Mugger - fairly strong enemy, melee
Ghast - strong enemy, darkness attacks
Guardsman - fairly strong enemy, melee/sword attacks
Bear [L] - strong enemy, melee attacks
[L] = Legendary, i.e. a boss type enemy