Here is the full list of all 101 Holy Potatoes! We're in Space?! achievements.
Craft 10 weapons!
Collect the Sonic Hammer!
Collect the Silver Figurine!
Collect the Blue Potaball!
1 S Rank Weapon Crafted!
Hire Silver Spudder!
1 Training Session Completed!
1 Research completed!
Collect the Gold Figurine!
Hire Barbrie!
1 Enemy Defeated!
1 Exploration Completed!
Craft 1 weapon!
Craft 30 weapons!
Craft 75 weapons!
Craft 150 weapons!
20 Enemies Defeated!
50 Enemies Defeated!
100 Enemies Defeated!
250 Enemies Defeated!
10 Explorations Completed!
30 Explorations Completed!
75 Exploration Completed!
150 Exploration Completed!
5 Researches Completed!
10 Researches Completed!
25 Researches Completed!
All Researches Completed!
10 Training Sessions Completed!
25 Training Sessions Completed!
50 Training Sessions Completed!
100 Training Sessions Completed!
Hire Azuka Kyuryu!
Hire Kyurei Anayami!
Hire Tarth Tater!
Hire Dr. What!
Hire Kale-o Ren!
Hire Einny!
Collect the Eye of the Kraken!
Collect the Remains of Fluffy!
Collect the Dead Mouse!
Collect the Red Potaball!
Collect the Green Potaball!
Collect the Magenta League Champion Belt!
Collect the Jar of Pickles!
Collect the Rainbow Gem!
Collect the Sanguine Paragon!
Collect the Necronomicon!
100% Galaxy Exploration! Curiosity Killed the... !
100% Galaxy Exploration! Sleeping Beauty!
100% Galaxy Exploration! A Hero's Journey!
100% Galaxy Exploration! Raiders of the Lost Quark!
100% Galaxy Exploration! Who you Gonna Call? PestBusters!!
100% Galaxy Exploration! Return of the Cheese Heroes!
100% Galaxy Exploration! Familiar Faces!
100% Galaxy Exploration! Phantom of the Space Opera!
100% Galaxy Exploration! Secret Story: Phantom of the Space Opera! Secret Story!
100% Galaxy Exploration! Pirates of the Carrobean!
100% Galaxy Exploration! Secret Story: Pirates of the Carrobean!
100% Galaxy Exploration! Whale, Whale, Whale! What do we have here?!!
100% Galaxy Exploration! Secret Story: Whale, Whale, Whale! What do we have here?!!
100% Galaxy Exploration! Jail Break!!
100% Galaxy Exploration! Secret Story: Jail Break!!
100% Galaxy Exploration! Familiar Faces...?!
100% Galaxy Exploration! The Crimson Ruins!
100% Galaxy Exploration! The Edge of the Universe!
100% Galaxy Exploration! The Other One!
100% Galaxy Exploration! Fay Story: Stones of the Ulaya!
100% Galaxy Exploration! Cassie Story: Stones of the Ulaya!
100% Galaxy Exploration! Dancing with the Devil!
100% Galaxy Exploration! The Loyal Hound!
100% Galaxy Exploration! The Unpredictable Doctor!
100% Galaxy Exploration! The Thorny Rose!
100% Galaxy Exploration! The Summer Triangle!
100% Galaxy Exploration! The Final Siege!
100% Galaxy Exploration! The Dreamers Awaken!
Completed the Secret Storyline!
Max out Engine Efficiency Research!
Max out Engine Power Research!
Max out Refinement Research!
Max out Greater Refinement Research!
Max out Shield Efficiency Research!
Max out Reinforced Plating Research!
Max out Surprise Attack Research!
Max out Opportunist Research!
Max out Combat Preparedness Research!
Max out Repair Crews Research!
Max out Improved Repairs Research!
Research Guardian Angel!
Max out $tarch Minded Research!
Max out Mental Resilience Research!
Max out Disaster Planning Research!
5 S Rank Weapons Crafted!
10 S Rank Weapons Crafted!
25 S Rank Weapons Crafted!
50 S Rank Weapons Crafted!
1 SS Rank Weapon Crafted!
3 SS Rank Weapons Crafted!
5 SS Rank Weapons Crafted!
10 SS Rank Weapons Crafted!
20 SS Rank Weapons Crafted!