>>11498713>>Lucy is indeed awesome but Mx0 fell into the shonen trap in the end: namek.
Mx0 is still action/comedy, the whole series can be divided into a few basic arcs:
1. Kuzumi is in deep shit
2. Kuzumi is in deeper shit (First Exam)
3. Kuzumi's got a loli (Cave Adventure)
4. Kuzumi is fucked (1st Year Class Fights)
5. Kuzumi is dead (Second Exam)
6. Kuzumi is GAR (Black Plate Trial)
Each of those arcs was shounen but was still very comedy oriented. It never got as heavy as Rosario + Vampire (not even close) as far as the LOL SHOUNEN goes, never went gag-manga like SZS. Prefect blend like Midori no Hibi.