Old roulette system and quick ways to get money

if anyone remembers the old system for roulette bet red /x2/x4

or bet 2/3 fields on 3x/6x....

I recently start doing this and made some money (not a lot, just for testing)

I was wondering if this still work with modern online casinos since i read that they do script that they recognize pattern and disallow u bet after some time.. but i guess u can do this 5-6 hands and then repeat every day ..it can still be ok, if u are in + daily..

Also what do you do when u want quick money?

Is it put all in in roulette one spin, or go for some quick no scatter no bonus game slot that pays instant hand?

Or something else?

The first system you're describing is called Martingale and this system never worked from the long-term perspective. The problem is that it will happen that you get a wrong colour too many times in a row, but you won't be able to bet on it the required amount of money, because you'll reach the max. bet limit on the roulette table.

Exactly, this method only works if your funds are infinite which would mean you do not have to use this strategy. RTP for roulette is depending how you play. In general there are many slots with better RTP, if you are looking for bigger chance to win.