Is Arena space have a special bonus for all the participant who want to avail their tokens ? Some of the ICO are giving a special bonus and promo for their token . I guess it will help the project and the ICO to become more popular and to lure more investors .
I think the special bonus you are talking about is the discount they offer for those who will invest in early stage of ICO. I'm not sure about the percentage of discount but you can check it on their whitepaper.