but here how I take on Heavy Units:
This is how I felt about it, "Unbalanced." Once I got through the crazy opening area it seemed to ease up so much, then suddenly spike again. There did not seem to be a middle ground or any sort of ramp from difficulty to difficulty.
The only difficulty spike is if you die, because you have to work hard to get back to a reasonable level.
And even then, if you die in this game, it's going to be because you crashed into terrain, because the game is extraordinarily kind with the amount of hits a shield can take.
I managed to go through the last half of the game blind and could tank it out - including the tricky final boss - thanks to the shields. It really lessens the difficulty.
I am a little disappointed... The game finally came in today, and I 1CC'd it on my second attempt. The opening isn't even tough anymore, since I figured out through trial and error the exact positioning to survive easily every time. The hardest part of the game, imo, is probably the power-up spam that makes you risk transforming back into a ship during the final boss. Well that, and the opening to the final stage - lots of bullets.
Pic: Final boss before he gave up the cyber ghostStill, lots of fun! I made it all the way near the end of the second loop (boss of 2-4) before a stupid death killed my excellent run.