Here is the full list of all 43 Goobies achievements.
Kill Ulla 50 times
Unlock the artifact Tinctured Glimpse
Kill Bacharach 50 times
Unlock the artifact Zigrids Last Wish
Kill 50 000 Runners
Kill Blobby 50 times
Unlock the artifact Pixel Perfect
Kill 15 000 Elite Spiders
Kill 10 Gaias
Kill 10 Zigrids
Kill 2 500 Elite Giants
Kill 10 000 Elite Runners
Kill 50 000 Elite Blobs
Kill 7 500 Ticks
Kill 5 000 Giants
Kill 15 000 Exploders
Kill 25 000 Spiders
Kill 100 000 Blobs
Kill 10 Mumsa
Unlock the artifact High Tide
Unlock the artifact Gilded Handle
Unlock the artifact Cracked Heart
Kill 10 Amams
Unlock the artifact Yocto
Unlock the artifact Wrath Of The Elder
Unlock the artifact Symbol Of Pain
Kill 10 Magmus
Unlock the artifact Full Spectrum
Unlock Bingus Bongus
Unlock Spinky Winky
Unlock the artifact Blobmoon
Unlock the artifact Blobbath
Unlock the artifact Sign Of Time
Unlock Hoozey Woozey
Unlock the artifact Mutated Gene
Unlock the artifact Double Trouble
Unlock the artifact Circle Of Self Control
Unlock Dizzy Wizzy
Play Goobies for the first time
Unlock the artifact Cursed Capsule
Unlock the artifact Pulverization
Unlock the artifact Blob Roulette
Unlock the artifact Abnormal Autopsy