Hold millions.
Give it all back.
Onchain.
Flash Arena turns one of DeFi's wildest superpowers into a sport. A single transaction borrows a fortune from Ekubo's deepest pools, loops it through the protocol, and returns every cent — atomically. You walk away with a permanent, onchain receipt that for a few seconds you moved a whale-sized bag. Your wallet balance? Exactly the same.
How you borrow a fortune for free
Your call asks Ekubo Core to hand you the keys for one transaction.
Pull whatever sits in the pools — no collateral, no permission.
Route the borrowed bag through Ekubo's flash accounting.
Hand every token back before the transaction ends.
Balances net to zero, the lock closes, your score is etched onchain.
Flash loan — borrow any amount of assets and repay them inside the same transaction. Miss the repayment by a single wei and the whole transaction reverts, as if it never happened. That is why the lender needs no collateral and takes no risk.
What exactly is a lock?
Ekubo keeps every drop of its liquidity in one place — a singleton Core contract. Instead of shuffling tokens on every swap, it opens a lock, hands control back to you, and quietly keeps a tab of what you owe and what you are owed.
Inside the lock you can do anything: swap, borrow, route through ten pools at once. When the lock closes, one rule is checked — every balance must net to zero. Settle the tab and you are free. That is flash accounting, and it is what makes moving millions cost almost nothing.
Net zero — the lock only lets your transaction succeed once everything borrowed is returned. The scale always has to balance.
For a few seconds, you're a whale
Your score is notional — the total size of the assets you pushed through Core in your run. It was never your money. You never owned it. But for the lifetime of one transaction, it all flowed through your call.
Flash Arena measures how big you can go. Blink and it is gone — except onchain, where your run is etched forever as proof you once commanded millions like lunch money.
Feel how deep Ekubo really is
Every run is a measuring stick for Ekubo's liquidity. The bigger the pools, the bigger the flash loops you can pull — and the bigger the flex on the board. It is a fun way to picture just how many assets actually live inside the protocol.
So consider this an open invitation: the more TVL flows into Ekubo, the higher the ceiling for everyone who plays. Want a bigger playground? Help grow the vault you are flexing in.
Test the depthDegen energy, onchain literacy
The degen in you
- Flex the biggest bag that ever passed through your wallet — with a receipt the chain signed.
- Climb a live leaderboard. A single transaction can dethrone #1.
- Mint an instant share card and flex it on X.
- Seconds of glory. You held millions, then gave it back. No risk, all swagger.
The onchain in you
- Feel how a flash loan really works by firing a real one.
- Understand Ekubo's lock and flash accounting from the inside.
- See why atomicity makes the whole thing risk-free for the protocol.
- Learn how a singleton AMM nets every balance to settle in one shot.
Ready to move your first million?
No deposit. No collateral. One transaction borrows from Ekubo, loops it, repays it — and writes your flex onchain forever.
Enter the arena