Not many options for your budget , look at the AF Nikkor 300 mm f 4 , seems like they go for around $ 400 on ebay , or the newer AFS version goes for around $ 900 used . <| sep |> Not in the same way at least . The bots wouldn ' t do the bread and butter followups for the most part , because they weren ' t standard combos then . And they wouldn ' t be doing stuff like wavedashing or waveshining or a lot of the ledge stuff probably . But they would still be capable of making them pretty damn good , probably . By doing stuff like frame perfect shieldspowershields , rolls , spotdodges and stuff like that . EDIT IIRC , the more difficult part about coding bots is more making them beatable but still somewhat challenging , and not frustrating to play against . In most games developers could make bots very difficult to beat more easily than make them actually balanced , I believe .