Now hidden power can only be upgraded with the item “Hidden Power Amplifier”.
You can upgrade 20 times and then reset for Coins L and upgrade again 20 times.
Reset prices:
1-3 Times: 1,000 L Coins
4-6 Times: 2 000 L Coins
7+ Times: 5 000 L Coins
At 6:30 every day, the reset price reverts back to 1,000 L Coins and 20 Boost Attempts.