Complex sentence: Like the first Monster Rancher for the Game Boy Advance, you generate monsters by inputting key phrases, this is unlike the rest of the series on disk based video game systems, which you generate monsters by inserting readable CDs, or DVDs.
Split into simpler sentences: Like the first Monster Rancher Advance, you generate monsters by inputting key phrases. This is unlike the rest of the series on disk based video game systems, in which you generate monsters by inserting readable CDs, or DVDs.