Gauntlet

By talking to Boros by the counter, G's can be spent unlocking units or evolution items.

Gauntlet is a game mode similar to Infinite Mode. You start off with 18 million cash, having to survive against enemies that range from 200 million to 1 billion+ health. Every 300 seconds, you earn 1G.

The Gauntlet Store is located inside the Infinite Mode building in World II.

Gauntlet Store

Name	Item/Unit	Evolutions	G Cost	Total G Required
Ombra	Ombra Ombra	Ombra Ombra	135G	135G
Ultra Token Boros	Boros Gauntlet Token Boros Gauntlet Token	Alien Boss Alien Boss → Alien Boss (Final) Alien Boss (Final)	2G	100G
Ultra Token	UltraToken UltraToken	Eyezen (Traitor) Eyezen (Traitor) → Eyezen (Hog II) Eyezen (Hog II) → Eyezen (Final) Eyezen (Final) Patchface Patchface → Patchface (Transfigured) Patchface (Transfigured) Patchface (Special) Patchface (Special) → Patchface (Transfigured) (Special) Patchface (Transfigured) (Special) Fire Officer Fire Officer → Fire Officer (Serious) Fire Officer (Serious) Flare Lord Flare Lord → Flare Lord (Serious) Flare Lord (Serious) Tatsu (Half) Tatsu (Half) → Tatsu (Rainbow Flames) Tatsu (Rainbow Flames)	2G	155G (for Eyezen (Traitor)) 70G (for Patchface) 70G (for Patchface (Special)) 70G (for Fire Officer) 50G (for Flare Lord) 50G (for Tatsu (Half))
Eyezen [Traitor]	Eyezen (Traitor) Eyezen (Traitor)	Eyezen (Traitor) Eyezen (Traitor) → Eyezen (Hog II) Eyezen (Hog II) → Eyezen (Final) Eyezen (Final)	25G	155G
Unhuman	Unhuman Unhuman	Unhuman Unhuman → Unhuman (Nullifier) Unhuman (Nullifier) → Unhuman (Nullifier) (Special) Unhuman (Nullifier) (Special)	36G	250G
Mysterious Necklace	Mysterious Necklace Mysterious Necklace	Unhuman Unhuman → Unhuman (Nullifier) Unhuman (Nullifier) → Unhuman (Nullifier) (Special) Unhuman (Nullifier) (Special)	3G	250G
Book Of Ending	Book Of Ending Book Of Ending	Unhuman Unhuman → Unhuman (Nullifier) Unhuman (Nullifier) → Unhuman (Nullifier) (Special) Unhuman (Nullifier) (Special)	5G	250G
Darkness Token	Darkness Token Darkness Token	Evil Shade (Jagan) Evil Shade (Jagan) → Evil Shade (Final) Evil Shade (Final)	2G	100G

Trivia

• It takes 100G or 30,000 seconds on 1x speed to get enough G for all the Boros Tokens
  • Alien Boss is obtainable via Banner Z or beating the Meteor Raids
• It takes 25G to buy Eyzen (Traitor), 40G for the first evolution’s tokens, and 90G for the second evolution’s tokens. This totals to 155G or 46,500 seconds Eyezen (Final)
• You need 135G for Ombra, which is 40,500 seconds on 1x speed.
• It costs 36G to buy Unhuman. 99G to buy the Mysterious Necklace for Unhuman (Nullifier), and 115G for Book Of Ending to get the shiny version Unhuman (Nullifier) (Special). Total is 250G or 75,000 seconds.
• To get all 4 7 Stars you would have to play Gauntlet Mode for 192,000 seconds (3200 minutes) (53.33 hours) on 1x, 96,000 seconds (1600 minutes) (26.66hours) on 2x, and using 3x speed it would take you a measly 64,000 seconds (1,006.66 minutes) (17.77 hours).