Other than actually seeing the tankoins being spent... I don't think so. Purchasing one of the Tanki Fund bundles is the only way to participate as well as the only way to indicate that you are participating. I hope that answers your question.

Hello @SipoComp_1, yes. By purchasing any of these 3 bundles, you will be taking part in the Tanki Fund.

Hello @SipoComp_1, the numbers represent your daily limit you can gain in PRO battles, meaning you can only get 15000 crystals and 10000 xp in a single day.

Hi @ZX99, after the recent update (Patch Notes #705) you need to have a drone equipped in order to be able to use your supplies again. If you want to save batteries, you can buy/equip the Brutus drone which costs only 1000 crystals and doesn't consume batteries.

You can access the mini game by clicking on this link.

Hello @CHRIZZ889, you can get different Firebird's flame colors by opening Containers, all the so called Shot effects are Epic rarity. Hope that answers your question!