Jiraiya could use this to defend himself for starters and it would be a clone
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Then just use toad flatness when the rikage is close to him
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Then use a clone to turn him into a frog
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Jiraya is a level above A. Speed blitz wont work on Jiraya he could just spit oil on the ground and would slow A's speed greatly but jiraya can still move fine because of his shoes. Jiraya uses Geta sandals and it is very similar to this scene
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Also the frogs can walk on oil fine due to their webbed feet and so can Jiraya if he feels the need to go to sage mode.
This is just a few of the counters that J-man has for A