My current strategy (after recent discovery of how much better Robotron is than Smash Tv

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As the screen starts to drop objects... note the placements of humans, circle bombers, and the density of robots arround around the center.
Immediately start to clear the least dense area and work your way to the outside edges of the screen.
In the process... when you get free enough to be safe... start to hunt down the circle bombers immediately before there are too many projectile shooting bots.
Collect as many humans as possible per life. Each time you save a human, your next human doubles in points... and after like 5 humans in a row - you get an extra life.
Try to collect all the humans on each level before blasting the final bot. This does get risky at times... esp if ther last bot it a nasty one - like a brain.
One the robo-tank stages... shoot the egg-layers down right away... dont chase after the humans. When the bots start to grow... do not to retreat. They usually dont shoot for a second or two upon entry. Charge at them fast and kill them. Also... Try not to retreat! The projectiles will bounce off the walls right into you a lot quicker this way. Instead... do the unthinkable and Charge in twords most of them. It really works most of the time! : ) When you get good.. try shooting the bullets they shot at you that slipped past you - before it bounces and hits you.
Have Patience. Sometimes you have a lot longer time till impact than you imagine... thus you move forward right away... and walk right into a bot. Instead... stay for that extra 1/2 second till your sure that youve completely cleared the path before charging on.
Dodging: To help from getting crucified by the crosses that fly at you... make sure to keep changing your speed and direction... otherwise the enemies will catch on and shoot ahead of you... marking your demise. Charging these can also yeild good results at times. In swarms of these... use the green bots as shields ( I think I remember that they cant shoot thru these?).
Clean up - Sometimes its easier to shoot thru those nasty electro-blocks to cut a path instead of walking arround them... or blasting thu a batch of bots. It also keeps you from running into them later... and finally gives you more running room.
Emotions: Try not to get angry, agressive, fusterated, depressed, ect. Instead.. just try to enjoy the darn game ; ) ((Tho - a little positive Glee laugh is acceptable ; ))Emotions will slow your thought process down.. and you cant have that in this game! heh Become a robot!
Soft-Focus - Instead of just focusing on the area arround your bot... try to be aware of the entire situation by shifting the focus of your eyes to encompass the entire screen. Youll lose a bit of clarity all arround... but youll notice impending doom a lot quicker - before its too late. THis can be dome every few seconds.. rather all the time- which
would leave you too unaware to handle the close proximity attackers.
Circles? Yeah... you dont want to backtrack too often... nor stay in one place too long. Either will lead to being targeted very quickly. Not that it has to be a circle... but keep moving in a genral direction rather than a back/forth method.
Mechanical - Very short throw sticks are a good bet ; ) Robotron originals are just beautiful.
Bigger! - Bigger display?! or sit closer to catch all the details... as youll be dodging death by a mere pixel very frequently.
Suicide? - I havnt extensively tested this... but in the brain stages sometimes you simply cant get to all the humans before they are turned into enemies... so: Collect like 5 (to cover your loss) eaily reachable humans... then quickly die. When the level restarts... many of the humans are still alive, and you may have a better shot at collecting more of them this time arround.
Thats about all Ive found out so far. : )