Then, like the 1st series, it began popping aliens, space and kinda different mechas? Different you say? Yes, the Top wo Nerae 2! mechas look much more like the EVAs than the 1st series mechas. But on the first chapters you note that this 2nd series battles are much MORE OVERPOWERED than the 1st series.
With you think that Dragon Ball Z is overpowered, think again, Diebuster 2 is the winner.
Overall, the anime has interesting art, looking like FLCL (it is the same director), the songs are great, and the action is intense like the 1st season.
But the good thing you will find in the end, i will not say, because it is a spoiler, but it will make you happy.
