I just noticed the contest results and saw that I managed to be in the top 3 for both games.
Thanks for this little scoring competition! It was fun optimizing my route in the first stage, especially with XIIZeal which has a very fast first level which meant that every point mattered. My top score before the contest was similar to yours, qmish, but I looked at the replays to see how to scrape more points out of the stage and aligned my strategies with them. Canceling bullets with bombs adds quite a bit for instance so it is advised not to quick kill the medium-sized ships coming from the sides. Moreover, out of the ~300k points the top scores have, only a third comes from the stage.
DeltaZeal is a bit more tricky as most of the score comes from converting bullets from one of the boss' patterns and there is a bit of randomness associated to it. From what I gathered, you have to put it on the verge of death, kill yourself and then use the post-death invincibility to drop the black hole bomb right on top of the boss to rack up tons of medals. However, there are three ways the boss can screw you over:
-By not firing the specific pattern that generates lots of bullets during your invincibility time (its patterns are kinda random)
-By not firing the specific pattern for as long as possible (it may move on to another pattern halfway through)
-By moving towards the lower edge of the screen before firing the pattern, which makes it difficult to grab all the medals without getting hit.
Therefore, situations where your perfect run is ruined due to no fault of your own can happen. Maybe there is a way to guess or force the next boss pattern but I don't know about it myself.