23 MONTHS AND YOUNGER ARE FREE ON LAP. THIS IS A STRICT NO RE-ENTRY EVENT. PHOENIX SUNS ARENA IS A NO SMOKING VENUE. Phoenix Suns Arena is now a cashless environment. Please plan on using Visa, MC, AMX or Discover during your visit; or have your cash converted onto a PayPal preloaded Mastercard at the ticket counter at no charge. RAIL RIDE EVENT: When you purchase a ticket to a PHX Arena event, you can ride the METRO LIGHT RAIL at no cost for four hours prior to the event through the end of the transit day.