2523556 - safe, edit, editor:lovetime17, rarity, crossover, protoboy, robotboy, vs - Derpibooru

Progirl and Robotboy Protoboy

2722720 - suggestive, artist:gradiusfanatic, spike, dragon, robot, anthro, 3d, bathroom, crossover, duo, female, jenny wakeman, male, male nipples, my life as a teenage robot, nipples, source filmmaker - Derpibooru

1306332 - safe, artist:thebigchillqueen, rarity, pony, robot, unicorn, g4, absurd resolution, crossover, cute, duo, duo male and female, female, hug, male, raribetes, robotboy, robotboy (character) - Derpibooru

2282705 - safe, artist:electrahybrida, derpibooru original, character:rarity, character:sunset shimmer, character:twilight sparkle, character:twilight sparkle (scitwi), oc, oc:festivitus prime, species:eqg human, equestria girls:sunset's backstage pass

2392896 - safe, artist:elioo, starlight glimmer, human, robot, equestria girls, g4, beanie, clothes, crossover, food, hat, ice cream, soundwave, transformers - Derpibooru

Robotboy, VS Battles Wiki

2138026 - dead source, safe, artist:elioo, rarity, sunset shimmer, cybertronian, equestria girls, g4, my past is not today, autobot, crossover, equestria bots, knock out, singing, species swap, transformerfied, transformers, transformers prime - Derpibooru

Robotboy Brother (Protoboy) Reversed

#2869506 - safe, artist:lrusu, cloudy quartz, igneous rock pie, earth pony, pony, g4, blush sticker, blushing, female, floating heart, glasses, heart, male, mare, pickaxe, ship:quartzrock, shipping, simple background, stallion, straight, white background, younger

2134390 - safe, artist:drawbauchery, color edit, edit, rainbow dash, rarity, equestria girls, g4, alternate clothes, bandaid, business suit, clothes, colored, crime against fashion, cringing, dialogue, duo, duo female, eyeroll, female, high heels

2024602 - safe, artist:curly1337, derpibooru import, screwball, pony, badass, bipedal, clothes, cosplay, costume, crossover, dressup, executive, hat, parody, pokémon, proton, r, team rocket - Twibooru

Robotboy vs protoboy

Robotboy vs protoboy