Meanwhile, Hadl learned that Tiger Electronics had licensed "King Kong" for a handheld game. He decided that Universal's earnings from it were too low and that the license's granting of exclusive rights to Tiger would impede the agreement with Coleco. On May 4, Sheinberg sent Tiger a mailgram demanding that they send their game in for further approval. Universal reviewed it and decided that "King Kong" was too similar to "Donkey Kong". On May 8, Sheinberg revoked Tiger's license, but Tiger president O. R. Rissman refused to give in and challenged Universal's claim that it owned the "King Kong" name.