In order to start a tournament you need to buy tournament tokens. Most of the time people who are hosting let you join for free. Not sure about the Judoka, just ask around the forums!
De los torneos no puedo responderte porque creo que son monedas reales y no uso de eso yo. Respecto a Jesús, veo que usas el 8 points con él, además de Muay Thai metele Velocidad, Poder y Brawling que veo que está muy atrasado. Yo lo que hago es imaginar lo que yo necesitaría si peleara en Muay Thai jajaja. Un saludo crack!
When you fight you earn money just for fighting. if you win you get 2x the amount. You can use real money to buy in game money, but in game money is easy to accrue. In order to buy tattoos and premium clothing you need to use real money to get it. I believe it'll be 800 credits, and I think thats $8.00 american, not sure where you live but I'm sure you could convert it.
When you first start off you can recruit 5 fighters. Recruit them, then I could suggest you buy the 6th fighter slot so you can get your next fighter the next reset.
Maximum Potential