Atomaders/Walkthrough

Campaign
Your goal in the game is to destroy cyborgs per each level, the cyborg formation at first will start moving slowly sideways, but as more cyborgs are destroyed in the said level, cyborgs will start moving in sideways faster and they will eventually start to descend the lesser cyborgs there are in the screen, some formations can already descend down to the ship from the start.

Plot
The game doesn't have much of a plot, but what the game tells is that Leda Prime is a planetary system that you have to liberate from cyborg invasion, and there 5 planets within in.

Leda Prime and Leda Prime Part 2
Campaign is split into 2 segments, Leda Prime and Leda Prime 2, which means you will replay the 5 planets one more time after finishing the first Campaign segment, the difference between the two segments is that the cyborg formation for all levels in all 5 planets are different between Leda Prime and Leda Prime 2, some formations on Leda Prime 2 are larger, faster, and trickier to finish.

Critical line
When the cyborgs go down way too low to the point where they can directly touch your ship, this will make the said cyborg unable to be shot down by your attacks and this means a guaranteed death for you, to circumvent this, always try to destroy the cyborgs from the bottom part of the formation first.

Scoring
Cyborgs are worth 10 score points, while power-ups are worth 5 points, Fighters are worth 20 score points, and Motherships cost 50 score points, if your shot collides with an enemy shot it will also give 5 points, Power-ups do not give any score except the +200 Score Power-up.

Combo mechanics
The game features a combo mechanic where the more cyborgs you destroy with a single power-up, the more score you can get, while the formula behind this is currently unknown, one thing you could do is to learn how to seamlessly use your power-ups one after another to get as much as combo and score as possible, the combo meter will be active once the power-up destroys at least 4 cyborgs, all weapons are eligible to have combos, the combo bonus and multiplier will be reset as soon as the combo is over.