I have done it
I got all the upgrades
all the enemies I have killed
All the bosses too
completed the boss rush in under 600 ms
I only have to get all the equipment
I have an idea for a new update, you could make it so when you rebirth you get rebirth tokens, and you can spend them on new snowflakes and upgrades, so you could have rebirth snowflakes like "meme" snowflake or "Cookie" snowflake.
 "Learn to Fly Idle"){kind=icon}
 "Node Warrior"){kind=icon}
 "Idle Snowflakes"){kind=icon}