Best Ideas for Microbe Stage Achievements

[AnthropocenianAge (𝒜𝓇𝓉𝒽𝓇𝑜𝓅𝓁𝑒𝓊𝓇𝒶 𝓌𝒶𝓃𝓉𝓈 𝓉𝑜 𝑔𝒾𝓋𝑒 𝓎𝑜𝓊 𝒶 𝒽𝓊𝑔!)]

How about some from Achievements (See below):

Achievements

Radioactive - Make an organism that survives solely on Radiation.

@Untrustedlife

“Truly a plant”
Evolve a microbe with a chloroplast, a nitrogen fixing plastid and a cell wall.

@Solitarian

Ferrovore - complete the microbe stage using only rusticyanin