This Seeking Tech guide will explain how you can increase your bot count from 300 to 305 in Astro Bot. Use the following video as a reference:
For the first four hidden bots, you need to first beat the 1984 Throwback stage in Astro’s Playroom. Afterwards, you will be able to rescue four characters that will automatically be bought over to Astro Bot.
The Lady Maria Bot is found in the Renderforest level in Astro’s Playroom. You will be able to get it to appear by hitting the big plant next to the Bloodborne Hunter bot.
Afterwards, you need to climb up the trees and get close to a clock. You then need to press the Options button to open a menu. From there, enter 24, 11 and 2015 to rescue the bot.
The Lady Maria Bot can then be found in the northeast edge of the Crash Site stage in Astro Bot. You will need help from two other bots in order to rescue her from the boulder.
The Selene Bot is found in the Deep Dataspace level in Astro’s Playroom. You will need to go through the stage until you get to the area with a gatling gun. If you look out to the space to its left, then you should get the bot to appear.
Afterwards, blast your way through the station but make sure you leave the green slime enemies alive. You then need to carefully make your way to the rooftop of the station and then look for a doll. Stand next to the doll and let one of the green slimes hit you to rescue this bot.
The Selene Bot can then be found in the southern edge of the Crash Site stage in Astro Bot. It will need to be freed from the boulder.
The Gran Turismo Bot can be found in the Bot Beach Stage in Astro’s Playroom. You first need to step on the four starfish in the correct order to get it to appear. Afterwards, head to the eastern side of the map and then knock away a purple shell to reveal a wheel. You then need to press the Options button to open the menu, where you should hear car engine noises. You then have to move around in a counterclockwise direction in order to rescue the bot.
The Gran Turismo Bot can then be found in the southwest edge of the Crash Site stage in Astro Bot, where it is trapped under a boulder.
The Ape Escape Bot is found in the Gusty Gateway stage in Astro’s Playroom. To get it to appear, play through the beginning until you create the second tightrope. You then need to backtrack to the first area to get a rocket. Next, get past the second tightrope to an area where you see a bot hiding in a bush. Look beyond the bush and then throw the rocket at the blue light to unlock the Ape Escape Bot.
Afterwards, look for a tree on top of a cliff. Keep attacking this tree until a banana falls off. You then need to take the banana to the Ape Escape Bot. Afterwards, you need to copy the monkey’s dances in order to rescue it.
The special Ape Escape Bot can then be found on the northwest edge on the Crash Site stage in Astro Bot. You will need to lift the boulder to rescue it.
For the fifth hidden bot can only be unlocked after you complete the secret level. To unlock this stage, you first need to find all 120 puzzle pieces to build the Golden Statue. You then need to rescue at least 300 bots, so that you can create the bot wall to run up to the secret level. Afterwards, complete the Great Master Challenge to rescue the Onion Master Bot.