Notable devotional works of Madhusudana Saraswati are:
- AnandamandAkinI (आनन्दमन्दाकिनी)
- Bhagavad Bhakti Rasayanam (भगवद्भक्तिरसायनम्)
- Ishvarapratipattiprakasha (ईश्वरप्रतिपत्तिप्रकाशः)
All are available to read in Sanskrit at Sanskritdocuments.org. Upon searching I found that Hindi translation of Bhagvad Bhakti Rasayana is available on Internet Archive but I didn't find English translation. (Will update the answer when I find)
Useful information from Preceptors of Advaita lists his works:
Madhusudana wrote a number of works on bhaktimarga and also on the Advaita Vedanta as propounded by Sankara. His works are Anandamandakini, Bhaktirasayana, Isvarapratipattiprakasa, Mahimnastotra-vyakhya, Harilila-vyakhya, Bhagavataprathamaslokatika, Vedantakalpalatika, Siddhantabindu, Samkshepasariraka-vyakhya, Gudarthadipika, Advaita-siddhi and Advaita-ratna-rakshana.
And couple of them are purely devotional:
Anandamandakini is an original poem of more than one hundred slokas in praise of Lord Krishna. This work was his maiden attempt. One can easily appreciate the fervent devotion of the author to Sri Krishna.
Bhaktirasayana is a great treatise on bhakti.