The Anime Lad
Class 3-E has one academic year to assassinate its new teacher, a cheerful yellow creature who can move at Mach 20. He also happens to be unusually invested in their grades. The students receive specialized weapons and training, plus the minor responsibility of preventing Earth's destruction. School administration has seen calmer semesters.
Super Eyepatch Fox
An outcast class receives one impossible assignment: assassinate the creature teaching them before graduation. He moves at Mach 20. He also tutors his attackers. Lessons become tactical problems, and every ordinary school rule bends around a planetary deadline. The target remains in charge of attendance.
Gigguku
A whole class gets government weapons and permission to attack their teacher, yet he is the first adult who seriously notices what each kid needs. That contradiction is SO good. The show turns daily school routines into tactical playgrounds without losing the bruised pride of students dumped into the school's lowest track.
Father's Basement
The opening gimmick is loud enough to sound disposable: teenagers repeatedly fail to hit a smiling tentacle monster. Some jokes lean hard on that rubbery spectacle. What rescues it is the attention paid to teaching. Each assassination attempt reveals a student's blind spot, and the supposed target keeps offering practical guidance that the respectable adults withheld.